CN101150764A - A system and method for realizing multi-user data concurrent service - Google Patents

A system and method for realizing multi-user data concurrent service Download PDF

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Publication number
CN101150764A
CN101150764A CNA2007101514623A CN200710151462A CN101150764A CN 101150764 A CN101150764 A CN 101150764A CN A2007101514623 A CNA2007101514623 A CN A2007101514623A CN 200710151462 A CN200710151462 A CN 200710151462A CN 101150764 A CN101150764 A CN 101150764A
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access
terminal
address
user
access server
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CN101150764B (en
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丰孝英
许秀莉
郑江霓
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ZTE Corp
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ZTE Corp
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/15Setup of multiple wireless link connections
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/26Network addressing or numbering for mobility support
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W80/00Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/04Network layer protocols, e.g. mobile IP [Internet Protocol]

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
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Abstract

A sysytem for realizing multi-user concurrent data service comprises an access concentrator, a terminal, an access server or a foreign agent and a home agent HA; wherein, the access concentrator collects access of multi-user, allocates an available IP address for the user from the continuous IP address field when a user requests to access; the terminal is connected with the access server or connected with HA through the foreign agent, provides data bearing for the multi-user IP service based on the connection; when the terminal asks a simple IP access for the user, the access server allocates an IP address for the terminal, realizes data binding of the multi-user mobile IP service. The invention provides support for the multi-user concurrent data service through one terminal.

Description

System and method for realizing multi-user data concurrent service
Technical Field
The present invention relates to a user Access technology in the field of communications, and in particular, to a system and a method for implementing multi-user Access by merging a Code Division Multiple Access (CDMA) network and an IP network.
Background
With the advancement of technology, communication technology has become an important factor for promoting social development, and among them, the development of mobile communication technology and IP technology is particularly drawing attention. The development direction of 3G mobile communication is exactly to combine these two technologies perfectly, so that people can communicate with any one person at any time and any place by using any media. The development direction is fully embodied in a CDMA2000 system, which is one of 3G systems, and not only can provide a data access mode based on a traditional simple IP to a user, but also introduces a mobile IP technology.
CDMA is a commonly used multiple access modulation technique based on wideband spread spectrum techniques. CDMA2000 is one of the main modes of third generation mobile communication, and provides not only high quality voice service but also high speed packet data transmission service. The CDMA system provides two access modes for users: simple IP and mobile IP.
The simple IP technology allocates an IP address to the terminal when the user accesses, and the terminal can be used as a calling packet data call. It can provide users with seamless roaming capability under the same Packet Data Service Node (PDSN). A new connection needs to be re-established when the user roams out of the serving PDSN.
The mobile IP technology allocates an IP address to a terminal when a user accesses the terminal, and can keep the IP address unchanged when the terminal roams across PDSNs. The method can provide seamless roaming capability under the same Home Agent (HA) for the user, and provide continuous data service for the user.
An IP address is an identification address that people have previously assigned to each computer on the Internet. According to the TCP/IP protocol, an IP address is composed of 32-bit binary numbers and is unique within the Internet. The IP address includes two parts, a network identifier and a host identifier, which are respectively used to identify the physical network (the Internet is a huge internetwork) to which the host belongs and the host itself (including a workstation, a server, a router, an access computer, etc. on the network).
In practical applications, it may be desirable for a terminal to provide data services to multiple users, such as data traffic over the Internet for multiple users in a lan, to be implemented as a terminal via a wireless network card. However, the prior art lacks the support that such a terminal provides data services for multiple users, which is a technical problem to be solved when the system implements multi-user access.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a system and a method for implementing multi-user data concurrent service, so as to provide a terminal to provide support for data services for multiple users.
In order to solve the above technical problem, the present invention provides a system for implementing multi-user data concurrent service, which is used for implementing simple IP service in a CDMA network, and the system comprises: the access concentrator, the terminal and the access server; wherein:
the access concentrator is used for collecting the access of a plurality of users and distributing an available IP address for the users when the users request the access;
the terminal is used for establishing connection with the access server and providing data service bearing for a plurality of users on the connection;
and the access server is used for providing access for the terminal, establishing simple IP service connection for the access, providing an IP address for the terminal and realizing the binding of the simple IP service data of a plurality of users.
Furthermore, the system is also used for realizing the mobile IP data service in the CDMA network, and the system also comprises a home agent HA; wherein:
the access server is used as a foreign agent, establishes mobile IP service connection for the access of the terminal, interacts with HA and realizes the binding of a plurality of user mobile IP service data;
the HA is connected to a foreign agent for providing an IP address to the terminal, and provides a mobile data service to the user together with the foreign agent.
Furthermore, the terminal establishes connection with the access server or the foreign agent, and when the access concentrator forwards the access request of the user to the terminal, the obtained IP address is carried to the access concentrator through a response signaling; or, when the access concentrator forwards the access request of the user, the terminal establishes connection with the access server or the foreign agent, and carries the obtained IP address to the access concentrator through a response signaling.
Further, the IP address provided for the terminal is the first IP address in the IP address field available for the user to use; the first IP address is designated by the terminal when requesting access to the access server or requesting access to the HA through the foreign agent, and is confirmed in a response of the access server to the request or in a response of the HA to the request through the foreign agent; or, the first IP address is provided to the terminal by the access server or the HA; and the access concentrator calculates an IP address set available for the user according to the first IP address and the pre-known subnet mask, and allocates the IP address in the IP address set.
Further, Ethernet transmission is adopted between the access concentrator and the terminal; alternatively, the access concentrator is integrated in one entity with the terminal.
Further, the terminal is connected with the access server through a wireless network or a wired network; alternatively, the terminal is connected to the foreign agent through a wireless network or a wired network.
Further, the access server or foreign agent is a packet data serving node in the CDMA network.
In order to solve the technical problem, the invention provides a method for realizing multi-user data concurrent service, which is used for realizing simple IP service in a code division multiple access CDMA network and relates to an access concentrator, a terminal and an access server; the method comprises the following steps:
(a) a terminal requests to access an access server, the access server allocates an IP address for the terminal, and the terminal is connected with the access server;
(b) the access concentrator detects that a user requests to access the simple IP service and requests an IP address from the terminal; the terminal carries the obtained IP address to the access concentrator in the response to the request;
(c) the access concentrator calculates an IP address set available for the user according to the IP address and the predicted subnet mask, and allocates an IP address for the user in the IP address set;
(d) the access concentrator forwards the data of the simple IP service for the user, and the data is carried through the connection between the terminal and the access server.
Furthermore, the method of the invention is also used for realizing the mobile IP service in the CDMA network, and also relates to a home agent HA; the access server is used as a foreign agent, the terminal in the step (a) requests to access to HA through the foreign agent, the HA distributes an IP address for the terminal, and the terminal establishes connection with the HA; step (b) the access concentrator detects that a user requests to access the mobile IP service; step (d) the access concentrator forwards the data of the mobile IP service for the user, and the data is loaded through the connection of the terminal and the HA.
Further, step (a) is included in step (b), that is, the connection established by the terminal and the access server or HA is performed after the terminal receives the access request from the access concentrator.
Further, when the access concentrator detects the user access again after the step (d), the steps (c) and (d) are repeatedly executed.
Further, when the terminal requests access in step (a), a first IP address of the IP address field is assigned to the access server or HA, and the access server or HA confirms the first IP address in a response to the request; or, when the terminal requests access in the step (a), the access server or the HA provides the first IP address of the IP address field to the terminal.
Further, the access server or foreign agent is a packet data serving node in the CDMA network.
Further, the terminal establishes connection with the access server through a connection protocol, and the access server and the terminal determine a set of usable IP addresses for the user according to the same subnet mask and the first IP address and provide a data channel for the usable IP addresses.
Further, the terminal establishes connection with the HA through a mobile IP registration request, and the HA and the terminal determine that the user can use the IP address field according to the same subnet mask and the first IP address and provide a data channel for the IP address which can be used in the IP address field.
The system and the method provided by the invention can provide data service for a plurality of users through one terminal and provide support for the plurality of users to carry out concurrent data service through one terminal.
Drawings
FIG. 1 is a schematic diagram of a system architecture for implementing a multi-user data concurrent service according to the present invention;
FIG. 2 is a flow chart of a method for implementing multi-user concurrent data services according to the present invention;
FIG. 3 is a flow chart of the present invention for implementing concurrent data services via simple IP in a CDMA system;
fig. 4 is a flowchart illustrating the implementation of concurrent data services through mobile IP in a CDMA system according to the present invention.
Detailed Description
The invention provides a system for realizing multi-user concurrent data service, which comprises: an access concentrator, a terminal, an access server-foreign agent and a home agent HA; the access concentrator collects the access of a plurality of users, and when a user requests to access, an available IP address is distributed to the user from a continuous IP address field; the terminal establishes connection (which can be established when receiving the user request forwarded by the access concentrator or before the user request) with the access server or with the HA through a foreign agent, and provides data bearing for IP services of a plurality of users on the connection; when the terminal requests the simple IP service connection for the user, the access server allocates continuous IP address fields for the terminal to realize the data binding of the multi-user simple IP data service; when the terminal requests mobile IP service connection for the user, HA distributes continuous IP address field for the terminal through foreign agent to realize data binding of multi-user mobile IP data service.
The following describes in detail the implementation of the above-mentioned technical solution of the present invention with reference to the embodiments and the accompanying drawings.
Fig. 1 is a schematic structural diagram of a system for implementing multi-user concurrent data services according to the present invention, where the system 100 includes: access concentrator 101, terminal 102, access server/foreign agent 103, and home agent 104; wherein,
the access concentrator 101 is configured to aggregate access of a plurality of users, and when a user requests access, an IP address is allocated to the user.
Here, the access concentrator 101 calculates an IP address set available to the user based on the IP address obtained from the terminal and the subnet mask that is known in advance, and allocates an available IP address to the user requesting access.
The subnet mask is a 32-bit address mask used to mask a part of the IP address to distinguish the network id and the host id in the IP address, indicating whether the IP address is on the lan or the lan, so that the network device can distinguish the address of the local network segment from the address of the non-local network segment as soon as possible. The subnet mask has another function of further dividing the subnet, reducing the address space of the subnet and dividing one network segment into a plurality of subnet segments, which is convenient for network management.
Ethernet transmission is used between the access concentrator 101 and the terminal 102. The access concentrator 101 may also be integrated in one entity with the terminal 102.
A terminal 102, configured to establish a connection with an access server-foreign agent 103, and provide a data service bearer for multiple users on the connection;
here, the connection can be established in two ways: one is that the terminal 102 establishes a connection with the access server/foreign agent 103 first, so as to provide a data service bearer for the user who subsequently makes an access request; when a user makes an access request through the access concentrator 101, carrying a continuous IP address to the terminal 102 through an access request response signaling; another is that when the user requests access through the access concentrator 101, the terminal 102 establishes a connection with the access server 103, and carries the continuous IP address to the terminal 102 through the response signaling, thereby providing the data service bearer for the user.
The terminal 102 may be connected to the access server 103 through a wireless network or a wired network. The connection established between the terminal 102 and the access server 103 may be a simple IP connection of the CDMA system or a mobile IP connection in the CDMA system.
An access server-foreign agent 103, configured to provide access for the terminal 102, and establish a connection for the access; on this connection, when the terminal requests simple IP data services for multiple users, the access server-foreign agent 103 assumes the function of the access server, allocating a segment of continuous IP addresses for the terminal; when the terminal requests mobile IP data services for multiple users, the access server-foreign agent 103 acts as a foreign agent, interacts with the home agent 104, and allocates a segment of continuous IP address for the terminal, thereby realizing the binding of the mobile IP data services for multiple users.
The IP address field may be the first IP address of the address field in the signaling, and the access concentrator, the terminal, the access server and the home agent determine which IP addresses the user may use by using the same subnet mask and the first IP address.
The access server 103 may be a PDSN of a CDMA system.
The home agent 104 is used in conjunction with a foreign agent to provide mobility data services to the user.
Fig. 2 is a flowchart of a method for implementing a multi-user concurrent data service according to the present invention. The access concentrator allocates an available IP address for a user from an obtained IP address field when the user accesses, and the terminal and the access server establish bearing connection for multi-user concurrent data service; under the condition of mobile IP, the access server takes on the function of a foreign agent, interacts with a home agent, forwards the request of a terminal and realizes the binding of a plurality of user mobile IPs. The method comprises the following steps:
201: the terminal requests to access to an access server or a home agent, the access server or the home agent allocates a section of continuous IP address for the terminal, and the terminal establishes connection with the access server or the home agent;
the connection established between the terminal and the access server may be a simple IP connection of the CDMA system or a mobile IP connection in the CDMA system.
When the simple IP connection is carried out, the terminal requests to be accessed to an access server; the access server allocates a section of continuous IP address for the terminal; or, when mobile IP is connected, the terminal establishes connection with the home agent through the access server, the access server is used as data load, and the home agent distributes a section of continuous IP address for the terminal through the foreign agent.
When the terminal requests access, it may specify the first IP address of the IP address field, and the access server or home agent receives the request and acknowledges the IP address in a reply.
The terminal is connected with the access server through a wireless network or a wired network. The access server is a PDSN of the CDMA system.
202: the access concentrator detects that a user accesses, and requests an IP address from a terminal;
here, step 202 may also be performed before step 201, that is, the terminal establishes a connection with the access server when receiving the IP address request of the access concentrator.
203: the terminal responds to the request of the access concentrator and carries the obtained IP address to the access concentrator through a response signaling;
ethernet transmission is adopted between the terminal and the access concentrator; alternatively, the terminal and the access concentrator may be combined into one entity.
204: the access concentrator calculates an IP address set available for the user according to the obtained IP address and the pre-known subnet mask, and allocates an available IP address for the user;
the IP address field may be the first IP address of the address field in the signaling, and the access concentrator, the terminal, the access server and the home agent determine which IP addresses the user may use by using the same subnet mask and the first IP address.
205: the access concentrator forwards data for the user, and the data is carried through the connection between the terminal and the access server or the home agent.
After step 203, if other users request access, step 204 to step 205 are repeated to realize the concurrence of data services of multiple users.
Fig. 3 is a flowchart illustrating a method for implementing concurrent data service through simple IP in a CDMA system according to the present invention. The connection established between the terminal and the PDSN is a simple IP connection, which may be a PPP (Point to Point Protocol) or non-PPP connection, and in the connection establishment process, the PDSN serves as an access server to provide the terminal with a first IP address of an IP address field that can be used by the user (the terminal may carry the first IP address of the IP address field in the signaling and is confirmed by the access server, or the terminal does not carry the IP address in the signaling and is designated by the access server).
The embodiment is described by taking an example of implementing concurrent data services by two users, and the specific steps are as follows:
301: the terminal requests to access to the PDSN, and requests to allocate an IP address in the PPP negotiation process, the PDSN allocates a first IP address of an IP address field which can be used by a user for the terminal, and the terminal and the PDSN establish PPP connection;
302: user 1 accesses to the access concentrator;
303: the access concentrator requests an IP address to the terminal;
304: the terminal responds to the IP address request of the access concentrator and carries the first IP address of the IP address field obtained from the PDSN to the access concentrator through a response signaling;
305: the access concentrator judges an available IP address set of the user according to the pre-known subnet mask and the acquired first IP address of the IP address field, allocates an IP address for the user and responds to an access request of the user;
the access concentrator allocates an IP address to each accessed user in the IP address set available to the user, so as to implement access of concurrent data of multiple users.
The PDSN, the terminal and the access concentrator determine which IP addresses can be used by the user according to the same subnet mask and the first IP address of the IP address field, and provide a data channel for the IP addresses which can be used by the user.
306: the user starts to transmit data, and the access concentrator, the terminal and the PDSN provide load bearing for the user data;
307: other users (user N) request access;
308: repeating the step 305;
309: and repeating the step 306 to realize the concurrence of the data services of the two users.
Fig. 4 is a flowchart illustrating a method for implementing concurrent data service through mobile IP in a CDMA system according to the present invention. The connection established between the terminal and the PDSN and between the terminal and the home agent HA is a mobile IP connection, the connection between the terminal and the PDSN may be a Point-to-Point Protocol (PPP) connection or a non-PPP connection, and the HA provides the first IP address of the IP address segment that can be used by the user for the terminal during the connection establishment.
The embodiment is described by taking an example of implementing concurrent data services by two users, and the specific steps are as follows:
401: the terminal requests to access to the PDSN, and does not request an IP address in the PPP negotiation process, and the terminal and the PDSN establish PPP connection;
402: the terminal sends mobile IP (Mobile IP), namely MIP (Mobile IP application protocol) registration request to the PDSN;
403: the PDSN is used as a foreign agent and forwards an MIP registration request of the terminal to the HA;
404: HA distributes the first IP address of the IP address field which can be used by the user for the terminal, responds MIP registration response;
405: the PDSN is used as a foreign agent, records the first IP address of the IP address field distributed by the HA for the terminal, and forwards the MIP registration response to the terminal;
406: user 1 accesses to the access concentrator;
407: the access concentrator requests an IP address to the terminal;
408: the terminal responds to the IP address request of the access concentrator and carries the first IP address of the obtained IP address field to the access concentrator through a response signaling;
409: the access concentrator judges the available IP address field of the user according to the pre-known subnet mask and the acquired first IP address of the IP address field, allocates the IP address for the user and responds to the access request of the user;
the access concentrator allocates an IP address for each accessed user in an IP address field available to the user so as to realize the access of concurrent data of a plurality of users.
HA. The PDSN, the terminal and the access concentrator determine which IP addresses the user can use according to the same mask and the first IP address of the IP address field, and provide a data path for the IP addresses that the user can use.
410: the user starts data transmission, and the access concentrator, the terminal, the PDSN and the HA provide load bearing for the user data;
411: other users (user N) request access;
412: repeating the step 409;
413: and repeating the step 410 to realize the concurrence of the data services of the two users.
In an actual application system, a user may connect to an Access concentrator in a manner of a WLAN (Wireless Local Access network: Wireless Local Access network), where the Access concentrator may be an AP (Access Point) device in a WLAN network; the terminal may be a wireless network card in a CDMA system.
The system and the method provided by the invention provide support for a plurality of users to carry out concurrent data service through one terminal.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore intended that all such changes and modifications as fall within the true spirit and scope of the invention be considered as within the following claims.

Claims (15)

1. A system for realizing multi-user data concurrent service is used for realizing simple IP service in CDMA network, the system includes the following connected in sequence: the access concentrator, the terminal and the access server; wherein:
the access concentrator is used for collecting the access of a plurality of users and distributing an available IP address for the users when the users request the access;
the terminal is used for establishing connection with the access server and providing data service bearing for the plurality of users on the connection;
the access server is used for providing access for the terminal, establishing the connection of the simple IP service for the access, providing an IP address for the terminal and realizing the binding of the simple IP service data of the plurality of users.
2. The system of claim 1, wherein said system is further for implementing mobile IP data services in said CDMA network, said system further comprising a home agent HA; wherein:
the access server is used as a foreign agent, establishes the mobile IP service connection for the access of the terminal, interacts with the HA and realizes the binding of the mobile IP service data of the plurality of users;
the HA is connected with the foreign agent and used for providing an IP address for the terminal and providing mobile data service for the user together with the foreign agent.
3. The system according to claim 1 or 2, characterized in that said terminal establishes said connection with said access server or said foreign agent first, and when said access concentrator forwards said user's access request to said terminal, said access concentrator is carried with said obtained IP address through response signaling; or, when the access concentrator forwards the access request of the user, the terminal establishes connection with the access server or the foreign agent, and carries the obtained IP address to the access concentrator through a response signaling.
4. A system according to claim 3, wherein the IP address provided to the terminal is the first IP address in the segment of IP addresses available to the user; the first IP address is specified by the terminal when requesting access to the access server or requesting access to the HA through the foreign agent, and is confirmed in a response of the access server to the request or in a response of the HA to the request through the foreign agent; or, the first IP address is provided to the terminal by the access server or the HA; and the access concentrator calculates the IP address set available for the user according to the first IP address and the pre-known subnet mask, and allocates the IP address in the IP address set.
5. System according to claim 1 or 2, characterized in that ethernet transmission is used between the access concentrator and the terminal; alternatively, the access concentrator is integrated in one entity with the terminal.
6. The system according to claim 1 or 2, wherein the terminal is connected to the access server through a wireless network or a wired network; or, the terminal is connected to the foreign agent through a wireless network or a wired network.
7. The system of claim 1 or 2, wherein the access server or the foreign agent is a packet data serving node in the CDMA network.
8. A method for realizing multi-user data concurrent service is used for realizing simple IP service in CDMA network, and relates to an access concentrator, a terminal and an access server; the method comprises the following steps:
(a) the terminal requests to access the access server, the access server allocates an IP address for the terminal, and the terminal establishes connection with the access server;
(b) the access concentrator detects that a user requests to access the simple IP service and requests an IP address from the terminal; the terminal carries the obtained IP address to the access concentrator in the response to the request;
(c) the access concentrator calculates an IP address set available for a user according to the IP address and a pre-known subnet mask, and allocates an IP address for the user in the IP address set;
(d) and the access concentrator forwards the data of the simple IP service for the user, and the data is borne through the connection between the terminal and the access server.
9. The method according to claim 8, characterized in that it is also used for implementing mobile IP services in a code division multiple access CDMA network, and also involving a home agent HA; the access server is used as a foreign agent, the terminal requests to access to the HA through the foreign agent, the HA allocates the IP address for the terminal, and the terminal establishes connection with the HA; step (b) the access concentrator detects that a user requests to access the mobile IP service; and (d) the access concentrator forwards the data of the mobile IP service for the user, and the data is loaded through the connection between the terminal and the HA.
10. Method according to claim 8 or 9, characterized in that step (a) is included in step (b), i.e. the connection established by said terminal with said access server or said HA, is performed after said terminal HAs received an access request from said access concentrator.
11. A method according to claim 8 or 9, wherein steps (c) and (d) are repeated when the access concentrator detects a further user access after step (d).
12. The method according to claim 8 or 9, wherein step (a) when said terminal requests access, a first IP address of an IP address field is assigned to said access server or said HA, said access server or said HA confirming said first IP address in a response to said request; or, when the terminal requests access in step (a), the access server or the HA provides the first IP address of the IP address field to the terminal.
13. The method of claim 8 or 9, wherein the access server or the foreign agent is a packet data serving node in the CDMA network.
14. The method of claim 12, wherein the terminal establishes a connection with the access server via a connection protocol, and the access server and the terminal determine a set of usable IP addresses for the user based on the same subnet mask and the first IP address and provide a data path for the usable IP addresses.
15. The method of claim 12, wherein said terminal establishes a connection with said HA through a mobile IP registration request, and said HA and said terminal determine that a user can use an IP address field based on the same subnet mask and said first IP address and provide a data path for said usable IP address.
CN2007101514623A 2007-10-18 2007-10-18 A system and method for realizing multi-user data concurrent service Expired - Fee Related CN101150764B (en)

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CN105024937A (en) * 2014-04-23 2015-11-04 国家电网公司 Large-scale concurrent user access processing method orienting intelligent electricity use field and device thereof
CN105024937B (en) * 2014-04-23 2018-02-16 国家电网公司 Towards the large-scale concurrent user access processing method and device in intelligent power field
CN109672758A (en) * 2017-10-13 2019-04-23 中兴通讯股份有限公司 Address distribution method, access server and computer storage medium
CN107948344A (en) * 2018-01-12 2018-04-20 上海市共进通信技术有限公司 The method of quick distribution IP address
CN110138418A (en) * 2019-05-30 2019-08-16 磐基技术有限公司 A kind of wire communication device for supporting multi-user while access
CN110138418B (en) * 2019-05-30 2022-04-08 磐基技术有限公司 Wired communication device supporting simultaneous access of multiple users

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